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-   -   "Static" blasts from wireless headphones? (https://www.diybanter.com/electronics-repair/283177-static-blasts-wireless-headphones.html)

Geoff_Mills July 27th 09 03:49 PM

"Static" blasts from wireless headphones?
 
Hi,
My Sony wireless headphones usually work fine for a variety of
purposes.
Video tutorials, played on the computer cause the headphones to be
used a little differently, in that I'll often pause the video to make
notes or do some related Web search.

Until paused the sound is clear. After the pause there is a short
(30-40 second) period of quiet, invariably followed by a sudden mind-
blowing blast of "static" like sound. This noise will continue until
the video is resumed, then it's back to untroubled audio again.

Sometimes I race to get the note taking done before the noise begins.
Sometimes I take off the headphones until I'm ready to resume the
video. This is quite inconvenient because I often do a lot of pausing/
note taking.

Can anyone please suggest a way of preventing this static noise
occurring under the circumstances described?

--
Regards,
Geoff Mills

William Sommerwerck July 27th 09 04:30 PM

"Static" blasts from wireless headphones?
 
I suspect the transmitter is shutting down after 30 seconds of no input.
Without a carrier to quiet the receiver, you then hear the noise in the
receiver's circuits.

If this is correct, it's downright odd, as there would be no good reason to
shut off the transmitter -- which I assume is /not/ battery powered.



Geoff_Mills July 27th 09 05:28 PM

"Static" blasts from wireless headphones?
 
On 27 July, 16:30, "William Sommerwerck"
wrote:

I suspect the transmitter is shutting down after 30 seconds of no input.
Without a carrier to quiet the receiver, you then hear the noise in the
receiver's circuits.

If this is correct, it's downright odd, as there would be no good reason to
shut off the transmitter -- which I assume is /not/ battery powered.


Thanks for the reply.
The transmitter is mains powered through a transformer.

I did a bit more investigating
I usually play Quick-time files in Media Player Classic. This brings
on the effect soonest.
It also happens when I play the same files in Windows Media Player,
though the period of quiet lasts much longer, perhaps 2 or 3 minutes.
If I play an *.avi file in Media Player Classic, I get the same, much
longer period of quiet before the noise starts.
It also happens when I use Winamp but again, after the much longer
quiet period.

So Quick-time files in Media Player Classic is the worst combination.
Also the most desirable combination.
Although the software has an effect I don't know if it can be adjusted
through software.
--
Regards,
Geoff Mills


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